
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>

<style type="text/css">

    table{
        border-collapse: collapse;
    }

    td{
        border: 1px solid #000;
        padding: 10px;
    }
</style>


<table>

    <tr>
        <td>编号</td>
        <td>用户名</td>
        <td>密码</td>
        <td>操作1</td>
        <td>操作2</td>
    </tr>


    <%
        // 脚本
        // 3+1 从数据库查数据

        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;

        String sql = "select * from t_users";

        // 加载驱动程序
        Class.forName("com.mysql.jdbc.Driver");

        connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/sctu_javaweb_2018?serverTimezone=UTC",
                "root",
                "123456" // 大家的密码是：123456
        );

        statement = connection.createStatement();
        resultSet = statement.executeQuery(sql);

        class User{
            int id;
            String username;
            String password;
        }

        List<User> userList = new ArrayList<User>();

        while(resultSet.next()){

            int id = resultSet.getInt(1);
            String username = resultSet.getString(2);
            String password = resultSet.getString(3);

            User user = new User();
            user.id = id;
            user.username = username;
            user.password = password;

            userList.add(user);
        }

        resultSet.close();
        statement.close();
        connection.close();


        for (User u : userList){
            out.write("<tr>" +
                    "<td>"+u.id+"</td>" +
                    "<td>"+u.username+"</td>" +
                    "<td>"+u.password+"</td>" +
                    "<td>删除</td>" +
                    "<td>更新</td>" +
                    "</tr>");

        }
    %>


</table>
</body>
</html>


